How to prune jerusalem artichoke 'stampede'

Mid-summer for height control if stems exceed 1.5–2 m; autumn after foliage dies back. Use loppers or a spade to cut stems to about 1 m in mid-summer if they are unstable. In autumn after frost kills the tops, cut all stems to 10–15 cm above soil level and remove from the bed. Dig tubers as needed over winter.

Once in summer if needed; once in autumn routinely. Jerusalem artichoke 'Stampede' is an early-maturing variety but still produces tall stems that can benefit from cutting back in summer to limit wind-rock. Cut all growth to near ground level every autumn after the foliage dies. This is routine garden management rather than precision pruning — the plants regrow from tubers left in the ground.

Use loppers or a spade to cut stems to about 1 m in mid-summer if they are unstable. In autumn after frost kills the tops, cut all stems to 10–15 cm above soil level and remove from the bed. Dig tubers as needed over winter.